@article{AL_1999_38_5_a2,
     author = {A. N. Zubkov},
     title = {Invariants of an adjoint action of classical groups},
     journal = {Algebra i logika},
     pages = {549--584},
     year = {1999},
     volume = {38},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1999_38_5_a2/}
}